I've been having fun with a 3 Zzap build.Upgrades:Grot tuned thrusters and shield-breaka shot. Will add shootier lances and mork-blessed scanners once hes leveled up.Skills:TauntMWJEnhanced induction cellsGrot on a rok

General tactic is set him to 3k prow charge towards chaos at horrifying speed ZZap away ships shield as they run and stick a Grot on a rok on him. Keep zapping till hes dead

Very few have got the guts to get close to an Ork battleship so hes pretty much free to shoot them up

Basically get into the 3rd bar of the nova kannon range and fire yoru first shot use reload to put it on a 30 second cd and fire another nova kannon at point blank range. Then use your battleship to micro warp jump forward and taunt the most important ship ramming it with 2x red buttons. The rest of yoru fleet follows and the enemy usually panics and tries to run/warp out.